On Tue, 2019-04-02 at 20:06 +-0800, Yufen Yu wrote: +AD4 diff --git a/block/genhd.c b/block/genhd.c +AD4 index 961b2bc4634f..a4ef0068dbb2 100644 +AD4 --- a/block/genhd.c +AD4 +-+-+- b/block/genhd.c +AD4 +AEAAQA -529,6 +-529,18 +AEAAQA void blk+AF8-free+AF8-devt(dev+AF8-t devt) +AD4 +AH0 +AD4 +AH0 +AD4 +AD4 +-/+ACoAKg +AD4 +- +ACo We invalidate devt by assigning NULL pointer for devt in idr. +AD4 +- +ACo-/ +AD4 +-void blk+AF8-invalidate+AF8-devt(dev+AF8-t devt) +AD4 +-+AHs +AD4 +- if (MAJOR(devt) +AD0APQ BLOCK+AF8-EXT+AF8-MAJOR) +AHs +AD4 +- spin+AF8-lock+AF8-bh(+ACY-ext+AF8-devt+AF8-lock)+ADs +AD4 +- idr+AF8-replace(+ACY-ext+AF8-devt+AF8-idr, NULL, blk+AF8-mangle+AF8-minor(MINOR(devt)))+ADs +AD4 +- spin+AF8-unlock+AF8-bh(+ACY-ext+AF8-devt+AF8-lock)+ADs +AD4 +- +AH0 +AD4 +-+AH0 Did you perhaps copy the above code from blk+AF8-free+AF8-devt()? If so, please modify blk+AF8-free+AF8-devt() such that it calls blk+AF8-invalidate+AF8-devt() instead of introducing a copy of most of blk+AF8-free+AF8-devt(). Thanks, Bart.
